Electrodiagnostic study is a diagnostic testing that consists of two parts:Electromyography (EMG)
Nerve conduction studies (NCS)
Electromyography (EMG) is one part of the test that evaluates the condition of the muscles as well as the nerves that innervates these muscles. It is performed to know the reason behind weakness, paralysis, numbness, and tingling sensation which are usually the symptoms of nerve problems. A physician who specializes in this study performs this test where tiny sterile needle electrodes are inserted in the muscles and the electrical activity is measured and recorded at rest and when in use. The electrical activity is displayed visually and audibly on a computer’s monitor. This test can be done in less than half an hour. When the needle electrode is inserted into the muscle one may feel a sudden sharp pain. At times the muscles tested may feel sore and tingly. Inform your doctor if the symptoms persist. There are no reported side effects.